Abag contains 75 marbles that are red, blue, or green. the ratio of red to blue marbles is 15: 7, and the ratio of blue to green marbles is 7: 3. if 2 marbles are removed and replaced with 2 green marbles, what will be the new ratio of red to green marbles.

5:5 or 7:3

Step-by-step explanation:

If there are 15 red marbles, there'll be 7 blue marbles.

If there are 7 blue marbles, there'll be 3 green marbles.

If we get 2 blue marbles and put 2 green, than things will stay like this:

If there are 5 blue marbles, there'll be 5 green marbles.

If we get 2 green marbles and put 2 green, than things will stay like this:

If there are 7 blue marbles, there'll be 3 green marbles.

Hope it helped,

BioTeacher101

a. she will receive a refund of $278.

step-by-step explanation: